Transaction•if the shopper cannot find an identical product, the shopper can send us the product and model, and we are able to present it for you.• After installation, if not working, please contact us as soon as possible, and our engineers can help you resolve the problem.• on the time of delivery, please verify the correctness and completeness of the goods. If the goods are flawed or damaged, please refuse to signal and get in contact with us.• one hundred pc new which means new product.• Our electrical aspects voltage is 220 V, in case your nation voltage is different, please contact us• Warranty:3 months guarantee, alternative and warranty. The customer shall pay for the transportation despatched back• the default delivery is Buydo ordinary delivery.• if you'd like other transport methods, please contact us, we will provide the following delivery methods :DHL, EMS, UPS, FEDEX• Customer delight is vital for us. Please dont go away any impartial or negative suggestions before contact us feedback is not the superb approach to resolve any problem. We can interact to resolve any dispute.• Your 5 celebrity suggestions is our motivation, searching forward to good feedback!Thank you very much!